import turtle

turtle.showturtle()

turtle.write("hello world")

turtle.forward(300)
turtle.color("red")
turtle.left(90)
turtle.forward(300)
turtle.goto(0,0)
turtle.penup() #抬起笔,路径不会画出来
turtle.goto(0,100)
turtle.pendown()
turtle.circle(50)

turtle.done()